I wouldn't mind to start a band with Bach and Chopin =)

I like Handel.

Beethoven

mozart

Mozart, for epitomising classicalism, with his transparency, symmetry, balanced form, poise and grace.
Beethoven for his passion, courage, daring adventure, and depth of his musical/poetical expression.
I suppose that JS Bach is strictly a baroque, rather than a classical composer, but for his crystalline, celestial counterpoints he has no equal.
And although strictly opera, or musical drama as he called it, there's the mighty Wagner, that most arty, dramatic, operatic of composers.
It's all good.

Tchaikovsky♥♥

You can't do that to me.

Very hard to say, but Ravel was a total genius. Small output but every piece was a marvel!